Wrench



H. H. KOB

WRENCH Dec. l 5, 1931.

Filed May 26, 1930 ATTORNEYS.

Patented Dec. 15, 1931 UNITED STATES HENRY HOWARD KOB, OF FoRrcoLLms,COLORADO:

WRENCH-f..

Application led May 26, 1930..` Seria1:.NO..455,626.v

My invention relates to Wrenches. The principal object is to provide astrong, compact and simple construction for a wrench whose jaws arealways parallel, whether I apart or together. j

Another object of the invention is to provide handles or levers for suchjaws that provide efficient means for operating the jaws. Still otherobjects of the invention will appear in the course of the followingdescription.

Thile the invention resides in the novel construction and arrangement ofparts, it is to be understood that changes may be made in same withoutdeparting from the scope and spirit of the invention.

In the drawings like reference characters designate similar parts in theseveral views.

Figure 1 shows an elevation of an embodiment of: my invention.

Figure 2 is a partly broken elevation, similar to that shown in Figure1, with a movable jaw, comprised in the invention, disposed in adifferent position.

Figure 3 is a section taken on the line 3 3 of Figure 1.

Figure 4 is a section taken on the line 4--4 of Figure 1.

Referring more in detail to the drawings, the reference numeral 5designates a relatively fixed handle or lever. A relatively movablehandle or lever 6 is pivoted to the liXed handle by means of a bolt 7,which acts as a fulcrum. A nut 8, bearing against a shoulder 9 of thebolt, holds the bolt in position.

The bolt extends through an opening 10 in the movable handle and throughslots 12 in the fixed handle. The body of the fixed handle has sideplates 13 that are spaced apart to receive the movable handletherebetween. The movable handle Operates between stops 14 and 15 on thebody of the fixed handle. The body member 30 carries a relatively fixedjaw 16.

The side plates 13 have inward ribs 17. A movable jaw 18, slidablymounted on the body 30, is grooved, as shown at 19, to be engaged by theribs 17. The movable-jaw has a boss 20 and a stem 21. The stem 21 isrecessed, shown at22, Vand slides 'in' an open'- ing'23offthe fiX'edjaw;

The movable .handle 6 has shoulders' 24' an`d'25 wliicli=ahut againstthe ribs 17 to limit the "opening and closingffmovements" of said1handle; The liandle'also has 'a-curvedlre'cess 26"'to12re'ceive thehoss20.rr `Movementof the j .handle 6`is Acommunieated tothemovablejjaw18 througiithemediumof theboss and recess. Fingers orabutments27 and28', respectively' projectiugbeyond the shoulders24.- and 25,engage't'heboss 'and movablejaw "at opposite sides. Thefinger28`is'disp'osed in the repositionsis'hetween the ribs 17. The recess 22not. only receives thetipt off the finger-28,

butalisofa considerable part of said linger,

when tliehandles arein an open position, as-

shown in broken lines in Figure 2.' 1

Inthe useiof v'the f invention, it will'be cl'ea'r thatmyuwrench -may.b'e'used in either of two adj usted position s, depending upon whetherof t'he'slotsf12;` InFigure 1, the closed'positionof thewrench "is showninfullilin'esand' thefopenposition is shown in dotted lines.

In lsaidview, the'bolt'fiszin the upper partl of' theslots.- Inf Figure2, the fu'lllines represent a closedposition.of`tlie'j aws,andthegdottediliiies representfthe open positionf'of the jaws; inwhichpositionsthe boltis in the 24 and 25 to limit opening and closingmovements of the handle 6.

What I claim and desire to secure by Letters Patent is:

1. A wrench comprising pivotally connected, crossed handles, arelatively stationary jaw on one handle and a relatively movable jaw onthe same handle, said handle also having an internal rib and the movablejaw having a groove disposed to be engaged by the rib, and the otherhandle being operatively connected with the movable jaw and disposed toabut against the rib to limit movement of the handle.

2. A Wrench comprising pivotally connected, crossed handles, arelatively stationary jaw on one handle and a relativel movable jaw onthe same handle, said han le also having an internal rib and themovablejaw having a groove disposed to be engaged by the rib, and theother handle having lingers disposed at opposite sides of the movableavv to move same, the lingers having shoul ers to abut against the ribon the irst-mentioned handle, to limit opening and closing movements ofsaid other handle.

3. `A Wrench consisting of a longitudinally and transverselv slottedhandle, a relatively stationary jaw on the handle, a ,relatively movablejaw, the handle and the latter jaw having engaging rib-and-groove meansslidably connecting the movable jaw to the handle, a second handle inthe longitudinal slot of the inst-mentioned handle, a bolt mounted inthe transverse slots of the rst-mentioned handle pivotall'y connectingthe handles, the second handle having fingers disposed at oppositesidesof the movable avv for communicating movement thereto, movable in thelongitudinal slot of the lirst handle, and having a shoulder disposed toabut against the rib tolimit movement of the handle.

4. A wrench comprising pivotally Connected crossed handles, a relativelystationary jaw on one handle and a relatively movable jaw on the samehandle, the last-mentioned handle and the movable jaw having en gagingrib-and-groove means slidably connecting the movable jaw to the latterhandle.I the other handle having abutments disposed to limit movementsof the movable jaw in opposite directions and to communicate to themovable jaw movements of said other handle. In testimony whereof Ihereunto afix my signature.

HENRY HOWARD KOB.

